Bending Die Design for a Pre-Formed Sheet Metal with a Golden Finger Feature |
| Journal |
Materials Science Forum (Volume 594) |
| Volume |
Advanced Manufacture |
| Edited by |
Sheng-Jye Hwang and Sen-Yung Lee |
| Pages |
51-56 |
| DOI |
10.4028/www.scientific.net/MSF.594.51 |
| Online since |
August, 2008 |
| Authors |
Jinn Jong Sheu,
Sheng Hao Fang
|
| Keywords |
Bending, CAE, Cold Roll Forming, DOE, Golden Finger |
| Abstract |
In this paper, authors proposed an effective quality index of bending operation and a new
punch profile design method to prevent defects. The proposed quality index is presented in terms of
distance of fracture location with respect to the topmost plane of blank, the maximum von Mises
stress, and the maximum shear stress. The Taguchi method with L18 orthogonal array was adopted to
evaluate the effects of design parameters and find out the optimum design of punch profile. A new
punch feature called “golden finger” was proposed to control the material flow and move the fracture
defects out of the trimming line. The results of this study had demonstrated the optimum die design
can be achieved with the proposed golden finger feature to obtain a sound product. |
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